A Case of Left Main Bronchomegaly (Mounier-Kuhn Syndrome) with Cystic Enlargement

DOI 12 References
  • Sugimoto Yukihiro
    Division of Respiratory Disease, Kumamoto Regional Medical Center:Department of Respiratory Medicine, Iizuka Hospital
  • Semba Hiroshi
    Division of Respiratory Disease, Kumamoto Regional Medical Center
  • Fujii Shinji
    Division of Respiratory Disease, Kumamoto Regional Medical Center
  • Satou Eri
    Division of Respiratory Disease, Kumamoto Regional Medical Center
  • Uchimura Tomomitsu
    Division of Endoscopy, Kumamoto Regional Medical Center
  • Kurano Ryouichi
    Division of Surgical Pathology, Kumamoto Regional Medical Center

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  • 左主気管支が嚢状拡張したBronchomegaly(Mounier-Kuhn症候群)の1例

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Abstract

Background. We report an extremely rare case of left main bronchomegaly with cystic enlargement. Case. A 62-year-old woman presented complaining of long-term cough and sputum. Her mother said she had aspirated a peanut in the left main bronchus which had been removed bronchoscopically when one year old. Her chest X-ray film revealed infiltrative shadows in the left middle lung field and computed tomography revealed the left main bronchus with cystic enlargement and an ill-defined mass (5cm) in the lingular bronchus (S^4). Bronchoscopy revealed the membranous portion of the left main bronchus with cystic enlargement, maintenance of the cartilage ring and bronchial mucosa with red and disappearance of longitudinal fold. Conclusion. Mounier-Kuhn syndrome is a distinct clinical and radiologic condition of marked enlargement of the trachea and major bronchi that is often associated with chronic respiration tract infection. In this case, in which there was the possibility of an infant anamnesis, although the details were unclear, there was marked cystic enlargement in the left main bronchus alone.

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